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Image:Stormwater planter.png|thumb|700 px|This is an image map of a stormwater planter, clicking on components will load the appropriate article.

Image:Stormwater planter.png|thumb|700 px|This is an image map of a stormwater planter, clicking on components will load the appropriate article.

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[[File:Stormwater planter pu.png|thumb|An above ground planter with downspout and overflow illustrated.]]

[[File:Stormwater planter pu.png|thumb|An above ground planter with downspout and overflow illustrated.]]

Over subsurface infrastructure, soils prone to subsidence, or pollution hotspots, it may be necessary to prevent all [[infiltration]]. These BMPs can also be squeezed into tight urban spaces, adjacent to buildings and within the usual setbacks required for infiltrating facilities. Stormwater planters can also be used as a means of providing building-integrated LID by capturing a portion of the rainwater from the rooftop.  

Over subsurface infrastructure, soils prone to subsidence, or pollution hotspots, it may be necessary to prevent all [[infiltration]]. These BMPs can also be squeezed into tight urban spaces, adjacent to buildings and within the usual setbacks required for infiltrating facilities. Stormwater planters can also be used as a means of providing building-integrated LID by capturing a portion of the rainwater from the rooftop.  

This type of cell can be constructed above grade in any waterproof and structurally sound container, e.g. in cast concrete or a metal tank.

This type of cell can be constructed above grade in any waterproof and structurally sound container, e.g. in cast concrete or a metal tank.

 

==Overview==

==Overview==

{{textbox|Stormwater planters are an ideal technology for:  

{{textbox|Stormwater planters are an ideal technology for:  

'''The design may benefit from:'''

'''The design may benefit from:'''

*A [[level spreaders| level spreader]]  

*A [[level spreaders| level spreader]]  

==Planning Considerations==

==Planning Considerations==

==Design==

==Design==

===Underdrain===

===Underdrain===

Stormwater planters differ fundamentally from [[bioretention]] in that the storage function is provided only by the [[water retention capacity]] of the [[filter media]]. As such there is no storage reservoir and the only purpose to the aggregate layer is to drain water to the [[perforated pipe]]. For this, a medium aggregate as described in [[choker layer]] is recommended as it negates the need for a separating layer to the filter media.  

Stormwater planters differ from full and/or partial infiltration [[bioretention]] practices in that the storage function is provided only by the [[water retention capacity]] of the [[filter media]]. As such, there is no storage reservoir and the only purpose to the aggregate layer is to drain water to the perforated [[pipe]]. For this, a medium aggregate as described in [[choker layer]] is recommended as it negates the need for a separating layer to the filter media. Design details can be found here  [[Underdrains#Underdrains for non-exfiltrating practices|Underdrains]] for non-exfiltrationg practices.

[[Underdrains#Underdrains for non-exfiltrating practices|Underdrain]]

===Planting===

===Planting===

Stormwater planters routinely capture only rainwater flowing from adjacent rooftops. This means that [[salt]] may be less of a concern than in [[Bioretention: Parking lots]] or [[Bioretention: Streetscapes]].  

The [[plant lists]] are still a good place to start when selecting species for LID in Ontario.

*Stormwater planters routinely capture only rainwater flowing from adjacent rooftops. This means that [[salt]] may be less of a concern than in [[Bioretention: Parking lots]] or [[Bioretention: Streetscapes]].  

*The [[plant lists]] are still a good place to start when selecting species for LID in Ontario.

*A more formal aesthetic for the planting design is appropriate for the urban hardscape setting.

===Liners===

===Liners===

==Performance==

==Performance==

{{:lit review}}

{{:lit review}}

Water quality <ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907.;doi:10.3390/w9110907</ref>

 

 

===Water quality===

<ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907.;doi:10.3390/w9110907</ref>

<ref>Lucke, T., & Nichols, P. W. B. (2015). The pollution removal and stormwater reduction performance of street-side bioretention basins after ten years in operation. Science of The Total Environment, 536, 784–792. https://doi.org/10.1016/J.SCITOTENV.2015.07.142</ref>

<ref>Lucke, T., & Nichols, P. W. B. (2015). The pollution removal and stormwater reduction performance of street-side bioretention basins after ten years in operation. Science of The Total Environment, 536, 784–792. https://doi.org/10.1016/J.SCITOTENV.2015.07.142</ref>

<ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907. doi:10.3390/w9110907</ref>

<ref>Macnamara, J.; Derry, C. Pollution Removal Performance of Laboratory Simulations of Sydney’s Street Stormwater Biofilters. Water 2017, 9, 907. doi:10.3390/w9110907</ref>